development by Wechsler

...He began a long association with Bellevue Psychiatric Hospital in New York City, serving as chief psychologist from 1932 to 1967. In 1939 he produced a battery of intelligence tests known as the Wechsler-Bellevue Intelligence Scale. The original battery was geared specifically to the measurement of adult intelligence, for clinical use. He rejected the idea that there is an ideal mental age...